Sun ONE Instant Messaging relation to Sun ONE Portal Server
Sun ONE Instant Messaging is tightly integrated with the Sun ONE Portal Server. Sun ONE Instant Messaging provides a portlet or channel that displays a list of a given user's online buddies and also provides the capability to archive chat and other forms of IM Communications within the portal server search database. Hence, chat, alerts, news channels and more can be archived and searched using the Search capabilities of the portal server. Indeed, Sun ONE Instant Messaging is a value-added offereng to the core Sun ONE Portal Server.
It should also be mentioned that Sun ONE Instant Messaging integrates with the Sun ONE Portal Server in other ways. Since the portal server provides a web container, the IM deployment can naturally use the web server provided by the portal server. The portal server also uses a directory server which can also be used by Sun ONE Instant Messaging for User and LDAP group search. Finally, Sun ONE Instant Messaging may also use the portal server's Identity Service to provide single sign-on with the portal server.

